.ground-school-screen {
    max-width: 1440px;
    margin: 0 auto;
    padding: 18px 22px 72px;
}

.ground-school-shell {
    display: grid;
    gap: 18px;
}

.ground-school-hero,
.ground-school-library-card,
.ground-school-detail,
.ground-school-assessment-card {
    border: 1px solid color-mix(in srgb, var(--border) 82%, var(--accent) 18%);
    border-radius: 22px;
    background: color-mix(in srgb, var(--card) 96%, var(--accent) 4%);
    box-shadow: var(--subtle-shadow);
}

.ground-school-hero {
    display: block;
    padding: 14px 18px;
    border-color: var(--border);
    border-radius: 14px;
    background: var(--card);
    box-shadow: none;
}

.ground-school-hero-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-width: 0;
}

.ground-school-hero-copy {
    min-width: 0;
}

.ground-school-kicker,
.ground-school-module-kicker,
.ground-school-preview-badge {
    color: var(--accent);
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.ground-school-hero .ground-school-kicker,
.ground-school-hero .ground-school-preview-badge {
    color: color-mix(in srgb, var(--accent) 78%, var(--text));
    font-size: 0.58rem;
    letter-spacing: 0.12em;
}

.ground-school-hero h1,
.ground-school-detail h2,
.ground-school-assessment-card h3 {
    margin: 8px 0;
    color: var(--text);
}

.ground-school-hero h1 {
    max-width: 520px;
    margin: 3px 0 0;
    font-size: clamp(1.05rem, 1.7vw, 1.45rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.ground-school-hero p,
.ground-school-detail-copy,
.ground-school-library-card p,
.ground-school-assessment-card p {
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
}

.ground-school-hero p {
    max-width: 480px;
    margin: 3px 0 0;
    font-size: 0.74rem;
    line-height: 1.4;
}

.ground-school-hero-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex: 0 0 auto;
    min-width: 0;
}

.ground-school-hero-actions .ground-school-toolbar-actions {
    align-items: center;
    gap: 7px;
}

.ground-school-hero-actions .ground-school-secondary-button,
.ground-school-hero-actions .ground-school-danger-button {
    min-height: 44px;
    padding: 10px 15px;
    border-radius: 12px;
    font-size: 0.84rem;
}

.ground-school-hero-actions .ground-school-builder-toggle {
    border-color: color-mix(in srgb, var(--accent) 82%, var(--border));
    background: var(--accent);
    color: var(--button-text);
    box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 22%, transparent);
}

.ground-school-hero-actions .ground-school-builder-toggle:hover,
.ground-school-hero-actions .ground-school-builder-toggle:focus-visible {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 88%, white 12%);
    color: var(--button-text);
    transform: translateY(-1px);
}

.ground-school-hero-actions .ground-school-danger-button {
    background: color-mix(in srgb, var(--wrong) 7%, var(--card));
}

.ground-school-preview-badge {
    flex: 0 0 auto;
    padding: 8px 11px;
    border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--border));
    border-radius: 10px;
    background: color-mix(in srgb, var(--accent) 7%, var(--card));
    color: color-mix(in srgb, var(--accent) 82%, var(--text));
    white-space: nowrap;
}

.ground-school-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.ground-school-toolbar-actions {
    display: flex;
    gap: 9px;
    flex-wrap: wrap;
}

.ground-school-course-navigation {
    display: flex;
    justify-content: center;
    min-width: 0;
}

.ground-school-course-tabs,
.ground-school-practice-counts,
.ground-school-actions,
.ground-school-assessment-actions {
    display: flex;
    gap: 9px;
    flex-wrap: wrap;
}

.ground-school-course-tabs {
    align-items: stretch;
    flex: 0 1 auto;
    gap: 12px;
    width: max-content;
    max-width: 100%;
    overflow-x: auto;
    justify-content: center;
    padding: 3px 14px 0;
    border-bottom: 1px solid var(--border);
    flex-wrap: nowrap;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--accent) 48%, var(--border)) transparent;
}

.ground-school-enrolment-placeholder {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(210px, 240px);
    gap: 24px;
    align-items: center;
    margin-bottom: 18px;
    padding: 22px 24px;
    border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
    border-radius: 18px;
    background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 7%, var(--card)), var(--card));
}

.ground-school-enrolment-copy {
    min-width: 0;
}

.ground-school-enrolment-topline {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.ground-school-enrolment-status-pill {
    padding: 4px 8px;
    border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 8%, var(--card));
    color: color-mix(in srgb, var(--accent) 76%, var(--text));
    font-size: 0.64rem;
    font-weight: 750;
}

.ground-school-enrolment-copy h2 {
    margin: 8px 0 5px;
    color: var(--text);
    font-size: clamp(1.22rem, 2vw, 1.55rem);
    letter-spacing: -0.02em;
}

.ground-school-enrolment-copy p.ground-school-enrolment-lead {
    max-width: 680px;
    margin: 0;
    color: color-mix(in srgb, var(--text) 70%, var(--bg));
    font-size: 0.94rem;
    line-height: 1.45;
}

.ground-school-enrolment-coverage {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    max-width: 680px;
    margin-top: 14px;
    padding: 9px 11px;
    border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
    border-radius: 10px;
    background: color-mix(in srgb, var(--accent) 9%, var(--card));
}

.ground-school-enrolment-coverage > span:first-child {
    display: grid;
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
    place-items: center;
    border-radius: 50%;
    background: var(--accent);
    color: var(--button-text);
    font-size: 0.76rem;
    font-weight: 850;
}

.ground-school-enrolment-coverage strong,
.ground-school-enrolment-coverage small {
    display: block;
}

.ground-school-enrolment-coverage strong {
    color: var(--text);
    font-size: 0.78rem;
}

.ground-school-enrolment-coverage small {
    margin-top: 2px;
    color: color-mix(in srgb, var(--text) 62%, var(--bg));
    font-size: 0.72rem;
    line-height: 1.35;
}

.ground-school-enrolment-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 14px;
}

.ground-school-section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 14px;
    margin: 22px 0 12px;
}

.ground-school-section-heading h2 {
    margin: 5px 0 0;
    color: var(--text);
    font-size: clamp(1.1rem, 2vw, 1.45rem);
}

.ground-school-order-note {
    padding: 6px 9px;
    border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--border));
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 7%, var(--card));
    color: color-mix(in srgb, var(--accent) 76%, var(--text));
    font-size: 0.68rem;
    font-weight: 750;
    white-space: nowrap;
}

.ground-school-enrolment-highlights span {
    padding: 6px 9px;
    border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border));
    border-radius: 8px;
    background: color-mix(in srgb, var(--card) 82%, var(--accent) 18%);
    color: color-mix(in srgb, var(--text) 78%, var(--bg));
    font-size: 0.72rem;
    font-weight: 700;
}

.ground-school-enrolment-note {
    display: block;
    margin-top: 11px;
    color: color-mix(in srgb, var(--text) 56%, var(--bg));
    font-size: 0.72rem;
}

.ground-school-enrolment-action {
    display: grid;
    min-width: 0;
    gap: 5px;
    justify-items: stretch;
    padding: 14px 15px;
    border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--border));
    border-radius: 14px;
    background: color-mix(in srgb, var(--card) 78%, var(--accent) 22%);
    color: color-mix(in srgb, var(--text) 62%, var(--bg));
    font-size: 0.72rem;
    text-align: center;
}

.ground-school-enrolment-price-label {
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-weight: 700;
}

.ground-school-enrolment-action strong.ground-school-enrolment-price {
    color: var(--text);
    font-size: clamp(1.4rem, 2.4vw, 1.85rem);
    letter-spacing: -0.03em;
}

.ground-school-enrolment-action button:disabled {
    min-height: 36px;
    margin-top: 5px;
    padding: 7px 12px;
    border-radius: 9px;
    font-size: 0.82rem;
    cursor: not-allowed;
    opacity: 0.65;
}

.ground-school-enrolment-action button:not(:disabled) {
    min-height: 42px;
    margin-top: 8px;
    padding: 9px 14px;
    border-radius: 10px;
    font-size: 0.84rem;
}

.ground-school-enrolment-action small {
    color: color-mix(in srgb, var(--text) 52%, var(--bg));
    font-size: 0.68rem;
    text-align: right;
}

.ground-school-enrolment-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: grid;
    place-items: center;
    padding: 22px;
    background: rgba(15, 23, 42, 0.58);
}

.ground-school-enrolment-modal {
    width: min(900px, 100%);
    max-height: min(820px, calc(100vh - 44px));
    overflow: auto;
    border: 1px solid color-mix(in srgb, var(--border) 80%, var(--accent) 20%);
    border-radius: 22px;
    background: var(--card);
    color: var(--text);
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.28);
}

.ground-school-enrolment-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    padding: 24px 26px 18px;
    border-bottom: 1px solid var(--border);
}

.ground-school-enrolment-modal-header h2 {
    margin: 6px 0 5px;
    color: var(--text);
    font-size: clamp(1.25rem, 2vw, 1.75rem);
}

.ground-school-enrolment-modal-header p,
.ground-school-form-section p {
    margin: 0;
    color: color-mix(in srgb, var(--text) 68%, var(--bg));
    line-height: 1.45;
}

.ground-school-enrolment-steps {
    display: flex;
    gap: 18px;
    padding: 14px 26px 0;
    color: color-mix(in srgb, var(--text) 55%, var(--bg));
    font-size: 0.76rem;
    font-weight: 750;
}

.ground-school-enrolment-steps span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ground-school-enrolment-steps span.is-active {
    color: var(--accent);
}

.ground-school-enrolment-steps b {
    font-weight: 750;
}

.ground-school-enrolment-form {
    display: grid;
    gap: 18px;
    padding: 20px 26px 26px;
}

.ground-school-form-section {
    display: grid;
    gap: 14px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: color-mix(in srgb, var(--card) 94%, var(--accent) 6%);
}

.ground-school-form-section h3 {
    margin: 5px 0 0;
    color: var(--text);
    font-size: 1rem;
}

.ground-school-form-grid,
.ground-school-upload-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px;
}

.ground-school-form-grid label,
.ground-school-upload-field {
    display: grid;
    gap: 6px;
    min-width: 0;
}

.ground-school-form-grid label > span,
.ground-school-upload-field > span {
    color: var(--text);
    font-size: 0.78rem;
    font-weight: 750;
}

.ground-school-form-grid label em,
.ground-school-upload-field em {
    color: var(--accent);
    font-size: 0.66rem;
    font-style: normal;
    font-weight: 700;
}

.ground-school-form-grid input,
.ground-school-upload-field input[type="file"] {
    width: 100%;
    min-height: 42px;
    box-sizing: border-box;
    padding: 10px 11px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--control);
    color: var(--text);
    font: inherit;
}

.ground-school-form-grid input:focus-visible,
.ground-school-upload-field input[type="file"]:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--accent) 72%, transparent);
    outline-offset: 2px;
}

.ground-school-readonly-field input {
    opacity: 0.72;
}

.ground-school-upload-field {
    align-content: start;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: color-mix(in srgb, var(--control) 72%, transparent);
}

.ground-school-upload-field small {
    min-height: 32px;
    color: color-mix(in srgb, var(--text) 62%, var(--bg));
    font-size: 0.7rem;
    line-height: 1.4;
}

.ground-school-upload-field input[type="file"] {
    padding: 7px;
    background: var(--card);
    font-size: 0.72rem;
}

.ground-school-upload-field strong {
    overflow: hidden;
    color: color-mix(in srgb, var(--accent) 75%, var(--text));
    font-size: 0.72rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ground-school-confirmation-check {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    color: color-mix(in srgb, var(--text) 76%, var(--bg));
    font-size: 0.78rem;
    line-height: 1.45;
}

.ground-school-confirmation-check input {
    flex: 0 0 auto;
    margin-top: 3px;
    accent-color: var(--accent);
}

.ground-school-enrolment-status,
.ground-school-enrolment-error {
    display: block;
    min-height: 1.1em;
    margin: 0;
    font-size: 0.78rem;
}

.ground-school-enrolment-status {
    color: color-mix(in srgb, var(--accent) 80%, var(--text));
}

.ground-school-enrolment-error {
    color: var(--wrong);
}

.ground-school-enrolment-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.ground-school-enrolment-complete {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin: 24px 26px 26px;
    padding: 20px;
    border: 1px solid color-mix(in srgb, var(--accent) 48%, var(--border));
    border-radius: 15px;
    background: color-mix(in srgb, var(--accent) 10%, var(--card));
}

.ground-school-enrolment-complete-icon {
    display: grid;
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent) 20%, var(--card));
    color: var(--accent);
    font-size: 1.35rem;
    font-weight: 850;
}

.ground-school-enrolment-complete h3 {
    margin: 5px 0 6px;
    color: var(--text);
}

.ground-school-enrolment-complete p {
    margin: 0 0 16px;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
    line-height: 1.45;
}

.ground-school-enrolment-locked {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin: 24px 26px 26px;
    padding: 20px;
    border: 1px solid color-mix(in srgb, var(--correct) 42%, var(--border));
    border-radius: 15px;
    background: color-mix(in srgb, var(--correct) 8%, var(--card));
}

.ground-school-enrolment-locked h3 {
    margin: 5px 0 6px;
    color: var(--text);
}

.ground-school-enrolment-locked p {
    max-width: 650px;
    margin: 0 0 14px;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
    line-height: 1.45;
}

.ground-school-locked-profile-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px 18px;
    margin: 16px 0;
    padding: 13px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: color-mix(in srgb, var(--card) 80%, var(--control) 20%);
}

.ground-school-locked-profile-fields div {
    min-width: 0;
}

.ground-school-locked-profile-fields dt {
    color: color-mix(in srgb, var(--text) 56%, var(--bg));
    font-size: 0.66rem;
    font-weight: 750;
    text-transform: uppercase;
}

.ground-school-locked-profile-fields dd {
    margin: 3px 0 0;
    overflow: hidden;
    color: var(--text);
    font-size: 0.8rem;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ground-school-enrolment-locked .ground-school-locked-note {
    margin-bottom: 16px;
    color: color-mix(in srgb, var(--wrong) 72%, var(--text));
    font-size: 0.76rem;
}

.ground-school-tab,
.ground-school-secondary-button,
.ground-school-count-button,
.ground-school-primary-button,
.ground-school-danger-button {
    min-height: 40px;
    padding: 9px 15px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--control);
    color: var(--text);
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

.ground-school-tab.is-active,
.ground-school-count-button.is-active,
.ground-school-primary-button {
    border-color: color-mix(in srgb, var(--accent) 70%, var(--border));
    background: var(--accent);
    color: var(--button-text);
}

.ground-school-tab {
    position: relative;
    flex: 0 0 auto;
    min-height: 48px;
    padding: 12px 18px 14px;
    border: 0;
    border-radius: 8px 8px 0 0;
    background: transparent;
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.94rem;
    font-weight: 780;
    white-space: nowrap;
    transition: color 160ms ease, background 160ms ease;
}

.ground-school-tab::after {
    position: absolute;
    right: 13px;
    bottom: -1px;
    left: 13px;
    height: 2px;
    border-radius: 2px 2px 0 0;
    background: transparent;
    content: "";
    transition: background 160ms ease;
}

.ground-school-tab:hover,
.ground-school-tab:focus-visible {
    border-color: transparent;
    background: color-mix(in srgb, var(--accent) 7%, transparent);
    color: var(--text);
}

.ground-school-tab.is-active {
    border-color: transparent;
    background: transparent;
    color: var(--text);
}

.ground-school-tab.is-active::after {
    background: var(--accent);
}

.ground-school-secondary-button:hover,
.ground-school-secondary-button:focus-visible,
.ground-school-tab:hover,
.ground-school-tab:focus-visible,
.ground-school-count-button:hover,
.ground-school-count-button:focus-visible {
    border-color: var(--accent);
}

.ground-school-danger-button {
    border-color: color-mix(in srgb, var(--wrong) 65%, var(--border));
    color: var(--wrong);
}

.ground-school-subject-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 15px;
}

.ground-school-library-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 220px;
    padding: 0;
    text-align: left;
    cursor: pointer;
    transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.ground-school-library-card:hover,
.ground-school-library-card:focus-visible,
.ground-school-library-card.is-selected {
    border-color: color-mix(in srgb, var(--accent) 70%, var(--border));
    box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 12%, transparent);
    transform: translateY(-2px);
}

.ground-school-library-card.is-locked {
    cursor: not-allowed;
    opacity: 0.63;
}

.ground-school-card-art {
    display: block;
    height: 154px;
    overflow: hidden;
    background: color-mix(in srgb, var(--accent) 14%, var(--bg));
}

.ground-school-card-art img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.88) contrast(1.03);
    transition: transform 220ms ease, filter 220ms ease;
}

.ground-school-library-card:hover .ground-school-card-art img,
.ground-school-library-card:focus-visible .ground-school-card-art img,
.ground-school-library-card.is-selected .ground-school-card-art img {
    transform: scale(1.035);
    filter: saturate(1) contrast(1.05);
}

.ground-school-library-card-top,
.ground-school-library-card-footer,
.ground-school-module-summary,
.ground-school-module-actions,
.ground-school-assessment-heading,
.ground-school-stat-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.ground-school-library-card-top {
    margin: 16px 20px 0;
}

.ground-school-number,
.ground-school-lock,
.ground-school-complete {
    display: inline-grid;
    min-width: 34px;
    min-height: 28px;
    place-items: center;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text) 12%, var(--card));
    color: color-mix(in srgb, var(--text) 75%, var(--bg));
    font-size: 0.74rem;
    font-weight: 850;
    letter-spacing: 0.08em;
}

.ground-school-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 30px;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1;
    white-space: nowrap;
}

.ground-school-status-icon {
    display: block;
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-status-check {
    display: grid;
    width: 15px;
    height: 15px;
    place-items: center;
    font-size: 0.9rem;
    line-height: 1;
}

.ground-school-status.ground-school-open {
    border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
    background: color-mix(in srgb, var(--accent) 9%, var(--card));
    color: var(--accent);
}

.ground-school-status.ground-school-lock {
    border-color: color-mix(in srgb, var(--text) 18%, var(--border));
    background: color-mix(in srgb, var(--text) 6%, var(--card));
    color: color-mix(in srgb, var(--text) 62%, var(--bg));
}

.ground-school-status.ground-school-complete {
    border-color: color-mix(in srgb, var(--correct) 35%, var(--border));
    background: color-mix(in srgb, var(--correct) 10%, var(--card));
    color: var(--correct);
}

.ground-school-library-card .ground-school-number {
    min-width: 0;
    min-height: 0;
    border-radius: 0;
    background: transparent;
    color: color-mix(in srgb, var(--text) 56%, var(--bg));
    font-size: 0.68rem;
    letter-spacing: 0.1em;
}

.ground-school-library-card .ground-school-status {
    min-width: 0;
    min-height: 28px;
    padding: 5px 9px;
    border-radius: 9px;
    font-size: 0.68rem;
}

.ground-school-complete {
    background: color-mix(in srgb, var(--correct) 22%, var(--card));
    color: var(--correct);
}

.ground-school-library-card h3 {
    margin: 14px 20px 8px;
    color: var(--text);
    font-size: 1.18rem;
}

.ground-school-library-card p {
    margin: 0 20px;
    line-height: 1.45;
}

.ground-school-library-card .ground-school-card-description {
    display: -webkit-box;
    margin-bottom: 10px;
    min-height: 2.9em;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.ground-school-progress {
    height: 7px;
    margin: auto 20px 15px;
    overflow: hidden;
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 18%, var(--card));
}

.ground-school-progress > span {
    display: block;
    width: var(--ground-progress, 0%);
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
}

.ground-school-library-card-footer > strong {
    color: var(--accent);
    font-size: 0.9rem;
}

.ground-school-card-meta,
.ground-school-module-meta,
.ground-school-detail-meta {
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.86rem;
}

.ground-school-subject-view {
    display: grid;
    gap: 12px;
}

.ground-school-back-button {
    justify-self: start;
    min-height: 38px;
    padding: 8px 13px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: transparent;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
    font: inherit;
    font-size: 0.9rem;
    font-weight: 750;
    cursor: pointer;
}

.ground-school-back-button:hover,
.ground-school-back-button:focus-visible {
    border-color: var(--accent);
    color: var(--text);
}

.ground-school-builder {
    padding: clamp(20px, 4vw, 38px);
    border: 1px solid color-mix(in srgb, var(--border) 82%, var(--accent) 18%);
    border-radius: 22px;
    background: color-mix(in srgb, var(--card) 96%, var(--accent) 4%);
    box-shadow: var(--subtle-shadow);
}

.ground-school-builder-heading,
.ground-school-builder-module-heading,
.ground-school-builder-actions {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.ground-school-builder-heading h2,
.ground-school-builder-module-heading h3 {
    margin: 7px 0 0;
    color: var(--text);
}

.ground-school-builder-heading p {
    margin: 9px 0 0;
    color: color-mix(in srgb, var(--text) 68%, var(--bg));
}

.ground-school-builder-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 26px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--bg) 70%, var(--card));
}

.ground-school-builder label {
    display: grid;
    gap: 7px;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
    font-size: 0.86rem;
    font-weight: 750;
}

.ground-school-builder input,
.ground-school-builder select,
.ground-school-builder textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 11px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--control);
    color: var(--text);
    font: inherit;
    font-weight: 500;
}

.ground-school-builder textarea {
    resize: vertical;
}

.ground-school-builder input[type="file"] {
    padding: 8px;
}

.ground-school-builder-help,
.ground-school-builder-upload-status {
    display: block;
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.45;
}

.ground-school-builder-taxonomy-field select[multiple] {
    min-height: 128px;
    padding: 6px;
    line-height: 1.45;
}

.ground-school-builder-taxonomy-field option {
    padding: 4px 6px;
}

.ground-school-builder-taxonomy-field option:checked {
    background: var(--accent);
    color: var(--button-text);
}

.ground-school-builder-upload-status[data-status="success"] {
    color: var(--correct);
}

.ground-school-builder-upload-status[data-status="error"] {
    color: var(--wrong);
}

.ground-school-builder-video-preview {
    display: grid;
    gap: 8px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
}

.ground-school-builder-video-preview video {
    width: min(100%, 720px);
    max-height: 300px;
    border-radius: 9px;
    background: #020617;
}

.ground-school-builder-video-preview span {
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.8rem;
    font-weight: 650;
}

.ground-school-builder-video-list {
    display: grid;
    gap: 12px;
}

.ground-school-builder-video-list-heading,
.ground-school-builder-video-item-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.ground-school-builder-video-list-heading > div {
    display: grid;
    gap: 3px;
}

.ground-school-builder-video-list-heading > div > span {
    color: var(--text);
    font-weight: 800;
}

.ground-school-builder-video-item {
    display: grid;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: color-mix(in srgb, var(--card) 75%, var(--bg));
}

.ground-school-builder-video-item-heading strong {
    color: var(--text);
}

.ground-school-builder-remove-video {
    padding: 5px 9px;
    border: 1px solid color-mix(in srgb, var(--wrong) 48%, var(--border));
    border-radius: 8px;
    background: transparent;
    color: var(--wrong);
    font: inherit;
    font-size: 0.74rem;
    font-weight: 750;
    cursor: pointer;
}

.ground-school-builder-video-empty {
    padding: 14px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    color: color-mix(in srgb, var(--text) 60%, var(--bg));
    font-size: 0.84rem;
}

.ground-school-builder-module-list {
    display: grid;
    gap: 14px;
    margin-top: 18px;
}

.ground-school-builder-module {
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--bg) 55%, var(--card));
}

.ground-school-builder-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px;
    margin-top: 16px;
}

.ground-school-builder-wide {
    grid-column: 1 / -1;
}

.ground-school-builder-remove {
    padding: 7px 10px;
    border: 1px solid color-mix(in srgb, var(--wrong) 60%, var(--border));
    border-radius: 999px;
    background: transparent;
    color: var(--wrong);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 750;
    cursor: pointer;
}

.ground-school-builder-actions {
    align-items: center;
    margin-top: 18px;
}

.ground-school-library-card-footer {
    margin: 0 20px 20px;
}

.ground-school-detail {
    padding: clamp(20px, 4vw, 38px);
}

.ground-school-detail-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
}

.ground-school-detail h2 {
    font-size: clamp(1.55rem, 3vw, 2.2rem);
}

.ground-school-detail-copy {
    max-width: 760px;
    margin: 0;
    line-height: 1.55;
}

.ground-school-detail-meta {
    display: flex;
    gap: 16px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.ground-school-module-list {
    display: grid;
    gap: 12px;
    margin-top: 28px;
}

.ground-school-module {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--control) 86%, var(--card));
}

.ground-school-module.is-locked {
    border-color: color-mix(in srgb, var(--text) 15%, var(--border));
    background: color-mix(in srgb, var(--bg) 48%, var(--card));
}

.ground-school-module.is-locked .ground-school-module-summary h3,
.ground-school-module.is-locked .ground-school-module-meta {
    color: color-mix(in srgb, var(--text) 62%, var(--bg));
}

.ground-school-module-summary {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 78px;
    padding: 15px 18px;
}

.ground-school-module-number {
    display: grid;
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    place-items: center;
    color: color-mix(in srgb, var(--accent) 88%, var(--text));
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    font-weight: 850;
    letter-spacing: 0.08em;
}

.ground-school-module-number.is-complete {
    border: 1px solid color-mix(in srgb, var(--correct) 56%, var(--border));
    border-radius: 50%;
    background: color-mix(in srgb, var(--correct) 20%, var(--card));
    color: var(--correct);
}

.ground-school-module-number.is-complete svg {
    width: 23px;
    height: 23px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-module-status-icon {
    display: grid;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--border));
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent) 8%, var(--card));
    color: var(--accent);
}

.ground-school-module-status-icon.is-complete {
    border-color: color-mix(in srgb, var(--correct) 56%, var(--border));
    background: color-mix(in srgb, var(--correct) 20%, var(--card));
    color: var(--correct);
}

.ground-school-module-status-icon svg {
    width: 23px;
    height: 23px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-module-summary h3 {
    margin: 4px 0;
    color: var(--text);
    font-size: 1.03rem;
}

.ground-school-module-summary button {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    flex: 1 1 auto;
    gap: 12px;
    width: 100%;
    min-width: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.ground-school-module-summary-copy {
    display: grid;
    min-width: 0;
    gap: 2px;
}

.ground-school-module-chevron {
    display: grid;
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
    place-items: center;
    color: color-mix(in srgb, var(--text) 62%, var(--bg));
    transition: transform 160ms ease;
}

.ground-school-module-chevron svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2;
}

.ground-school-module-chevron.is-expanded {
    transform: rotate(180deg);
}

.ground-school-module-summary button:disabled {
    cursor: not-allowed;
}

.ground-school-module.is-locked .ground-school-module-number {
    color: color-mix(in srgb, var(--text) 54%, var(--bg));
}

.ground-school-module-summary > .ground-school-status {
    flex: 0 0 auto;
    min-width: 0;
}

.ground-school-module-body {
    display: grid;
    gap: 16px;
    padding: 0 18px 20px;
}

.ground-school-module-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.ground-school-module-step-card {
    display: flex;
    min-width: 0;
    min-height: 76px;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: color-mix(in srgb, var(--card) 88%, var(--control));
    color: var(--text);
    text-align: left;
}

button.ground-school-module-step-card {
    width: 100%;
    font: inherit;
    cursor: pointer;
}

button.ground-school-module-step-card:hover,
button.ground-school-module-step-card:focus-visible {
    border-color: color-mix(in srgb, var(--accent) 48%, var(--border));
    background: color-mix(in srgb, var(--accent) 8%, var(--card));
    outline: none;
}

.ground-school-module-step-card.is-complete {
    border-color: color-mix(in srgb, var(--correct) 38%, var(--border));
    background: color-mix(in srgb, var(--correct) 8%, var(--card));
}

.ground-school-module-step-card.is-complete .ground-school-module-step-icon {
    border-color: var(--correct);
    background: var(--correct);
    color: var(--card);
}

.ground-school-module-step-card.is-locked {
    opacity: 0.62;
    cursor: not-allowed;
}

.ground-school-module-step-icon {
    display: grid;
    width: 40px;
    height: 40px;
    flex: 0 0 40px;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--border));
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent) 9%, var(--card));
    color: var(--accent);
}

.ground-school-module-step-icon svg {
    width: 21px;
    height: 21px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-module-step-copy {
    display: grid;
    min-width: 0;
    gap: 4px;
}

.ground-school-module-step-copy strong,
.ground-school-module-step-copy span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.ground-school-module-step-copy strong {
    color: var(--text);
    font-size: 0.98rem;
    white-space: nowrap;
}

.ground-school-module-step-copy span {
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.82rem;
    white-space: nowrap;
}

.ground-school-module-step-copy .ground-school-module-step-label {
    color: var(--accent);
    font-size: 0.61rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    line-height: 1.1;
}

.ground-school-sequence-note {
    margin-top: 10px;
}

.ground-school-sequence-note strong {
    color: var(--text);
}

.ground-school-module-step-arrow {
    display: grid;
    width: 20px;
    height: 20px;
    flex: 0 0 20px;
    margin-left: auto;
    place-items: center;
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
}

.ground-school-module-step-arrow svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-video-placeholder {
    display: grid;
    min-height: 150px;
    place-items: center;
    padding: 24px;
    border: 1px dashed color-mix(in srgb, var(--accent) 55%, var(--border));
    border-radius: 14px;
    background: radial-gradient(circle at 50% 20%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 55%), var(--bg);
    color: color-mix(in srgb, var(--text) 78%, var(--bg));
    text-align: center;
}

.ground-school-video-list {
    display: grid;
    gap: 12px;
}

.ground-school-video-item {
    display: grid;
    gap: 10px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: color-mix(in srgb, var(--bg) 42%, var(--card));
}

.ground-school-video-item.is-complete {
    border-color: color-mix(in srgb, var(--correct) 45%, var(--border));
}

.ground-school-video-item-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.ground-school-video-item-heading > div {
    display: grid;
    gap: 3px;
}

.ground-school-video-item-heading strong {
    color: var(--text);
}

.ground-school-video-item-heading > div > span:last-child {
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.82rem;
}

.ground-school-video-item-status {
    color: color-mix(in srgb, var(--text) 60%, var(--bg));
    font-size: 0.75rem;
    font-weight: 750;
    white-space: nowrap;
}

.ground-school-video-item.is-complete .ground-school-video-item-status {
    color: var(--correct);
}

.ground-school-video-item video {
    display: block;
    width: 100%;
    max-height: 360px;
    border-radius: 10px;
    background: #020617;
}

.ground-school-video-missing {
    display: grid;
    gap: 5px;
    padding: 20px;
    border: 1px dashed color-mix(in srgb, var(--accent) 45%, var(--border));
    border-radius: 10px;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
    text-align: center;
}

.ground-school-video-missing span {
    color: color-mix(in srgb, var(--text) 54%, var(--bg));
    font-size: 0.84rem;
}

.ground-school-video-placeholder video {
    display: block;
    width: min(100%, 720px);
    max-height: 360px;
    margin: 0 auto 14px;
    border-radius: 12px;
    background: #020617;
}

.ground-school-video-placeholder strong,
.ground-school-video-placeholder span {
    display: block;
}

.ground-school-video-placeholder span {
    margin-top: 7px;
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
    font-size: 0.88rem;
}

.ground-school-assessment-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.ground-school-assessment-card {
    padding: 22px;
}

.ground-school-attempt-count {
    display: grid;
    justify-items: end;
    gap: 1px;
    color: color-mix(in srgb, var(--text) 58%, var(--bg));
}

.ground-school-attempt-count strong {
    color: var(--text);
    font-size: 1.4rem;
    line-height: 1;
}

.ground-school-attempt-count span,
.ground-school-history-heading,
.ground-school-attempt-note {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.ground-school-assessment-card.is-locked {
    opacity: 0.65;
}

.ground-school-assessment-card h3 {
    font-size: 1.25rem;
}

.ground-school-stat-row {
    padding: 10px 0;
    border-top: 1px solid var(--border);
    color: color-mix(in srgb, var(--text) 70%, var(--bg));
}

.ground-school-stat-row strong {
    color: var(--text);
}

.ground-school-empty-state,
.ground-school-inline-status {
    padding: 15px 17px;
    border-radius: 12px;
    background: color-mix(in srgb, var(--accent) 11%, var(--card));
    color: color-mix(in srgb, var(--text) 78%, var(--bg));
}

.ground-school-empty-state {
    border: 1px dashed var(--border);
}

.ground-school-attempt-list {
    display: grid;
    gap: 8px;
    margin: 14px 0 0;
    padding: 0;
    list-style: none;
}

.ground-school-attempt-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
}

.ground-school-attempt-list li > div {
    display: grid;
    gap: 3px;
}

.ground-school-attempt-list li strong {
    color: var(--text);
}

.ground-school-attempt-review {
    min-height: 30px;
    padding: 5px 10px;
    border: 1px solid color-mix(in srgb, var(--accent) 52%, var(--border));
    border-radius: 8px;
    background: transparent;
    color: var(--accent);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 750;
    cursor: pointer;
}

.ground-school-attempt-review:hover,
.ground-school-attempt-review:focus-visible {
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.ground-school-history-heading {
    display: flex;
    justify-content: space-between;
    margin: 18px 0 8px;
    color: color-mix(in srgb, var(--text) 55%, var(--bg));
}

.ground-school-modal-backdrop {
    position: fixed;
    z-index: 1200;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 18px;
    background: rgba(2, 6, 23, 0.76);
}

.ground-school-quiz-modal {
    box-sizing: border-box;
    width: min(760px, calc(100vw - 32px));
    max-height: calc(100dvh - 32px);
    overflow: auto;
    overflow-x: hidden;
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--card);
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.38);
    overscroll-behavior: contain;
}

.ground-school-quiz-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 15px;
}

.ground-school-quiz-header h2 {
    margin: 2px 0;
    color: var(--text);
    font-size: clamp(1.12rem, 1.65vw, 1.35rem);
    line-height: 1.2;
}

.ground-school-result-label,
.ground-school-completion-label {
    color: color-mix(in srgb, var(--text) 60%, var(--bg));
    font-size: 0.8rem;
    font-weight: 700;
}

.ground-school-quiz-close {
    min-width: 38px;
    min-height: 38px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--control);
    color: var(--text);
    font-size: 1.25rem;
    cursor: pointer;
}

.ground-school-quiz-timer {
    margin: 8px 0;
    color: var(--accent);
    font-weight: 800;
}

.ground-school-question {
    margin: 18px 0 0;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 14px;
}

.ground-school-question legend {
    padding: 0 5px;
    color: var(--text);
    font-weight: 750;
    line-height: 1.45;
}

.ground-school-question-option {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-top: 10px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: color-mix(in srgb, var(--text) 84%, var(--bg));
    cursor: pointer;
}

.ground-school-question-option:has(input:checked) {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, var(--card));
}

.ground-school-quiz-actions {
    display: flex;
    position: sticky;
    z-index: 2;
    bottom: -1px;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
    padding: 12px 0 4px;
    border-top: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
    background: var(--card);
    box-shadow: 0 -10px 18px color-mix(in srgb, var(--card) 92%, transparent);
}

.ground-school-quiz-actions-spacer {
    flex: 1 1 auto;
}

.ground-school-quiz-actions button:disabled {
    cursor: not-allowed;
    opacity: 0.42;
}

.ground-school-flag-button {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 8px 13px;
    border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
    border-radius: 10px;
    background: transparent;
    color: color-mix(in srgb, var(--text) 78%, var(--bg));
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

.ground-school-flag-button svg {
    width: 17px;
    height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-flag-button:hover,
.ground-school-flag-button:focus-visible,
.ground-school-flag-button.is-flagged {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 12%, var(--card));
    color: var(--accent);
    outline: none;
}

.ground-school-flag-button.is-flagged {
    border-color: #f59e0b;
    background: color-mix(in srgb, #f59e0b 14%, var(--card));
    color: #f59e0b;
}

.ground-school-quiz-lead {
    max-width: 660px;
    margin: 4px 0 0;
    color: color-mix(in srgb, var(--text) 65%, var(--bg));
    font-size: 0.86rem;
    line-height: 1.3;
}

.ground-school-practice-setup {
    width: min(620px, 100%);
}

.ground-school-feedback-options {
    display: grid;
    gap: 12px;
    margin-top: 24px;
}

.ground-school-feedback-choice {
    display: grid;
    gap: 6px;
    width: 100%;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--control) 72%, var(--card));
    color: var(--text);
    text-align: left;
    font: inherit;
    cursor: pointer;
}

.ground-school-feedback-choice strong {
    font-size: 1rem;
}

.ground-school-feedback-choice span {
    color: color-mix(in srgb, var(--text) 65%, var(--bg));
    line-height: 1.45;
}

.ground-school-feedback-choice:hover,
.ground-school-feedback-choice:focus-visible,
.ground-school-feedback-choice.is-selected {
    border-color: color-mix(in srgb, var(--accent) 72%, var(--border));
    background: color-mix(in srgb, var(--accent) 9%, var(--card));
}

.ground-school-quiz-progress {
    display: grid;
    gap: 7px;
    margin: 12px 0 0;
    color: color-mix(in srgb, var(--text) 60%, var(--bg));
    font-size: 0.78rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.ground-school-quiz-progress > div:first-child {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.ground-school-quiz-progress-track {
    display: flex;
    gap: 4px;
    overflow: hidden;
}

.ground-school-quiz-progress-step {
    flex: 1 1 0;
    min-width: 5px;
    height: 5px;
    border-radius: 99px;
    background: color-mix(in srgb, var(--text) 14%, var(--card));
}

.ground-school-quiz-progress-step.is-answered {
    background: color-mix(in srgb, var(--accent) 48%, var(--card));
}

.ground-school-quiz-progress-step.is-current {
    background: var(--accent);
}

.ground-school-quiz-progress-step.is-flagged {
    background: #f59e0b;
}

.ground-school-question-card {
    margin-top: 12px;
    padding: 10px 0 0;
    border-color: transparent;
    background: transparent;
    border-radius: 0;
}

.ground-school-question-number {
    margin-bottom: 7px;
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.ground-school-question-card h3,
.ground-school-review-question h3 {
    margin: 0 0 9px;
    color: var(--text);
    font-size: clamp(1rem, 1.25vw, 1.12rem);
    line-height: 1.28;
}

.ground-school-question-card fieldset {
    display: grid;
    gap: 7px;
    margin: 0;
    padding: 0;
    border: 0;
}

.ground-school-question-option {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 9px;
    align-items: center;
    margin-top: 0;
    min-height: 42px;
    padding: 8px 10px;
    border-radius: 12px;
    transition: border-color 160ms ease, background 160ms ease;
}

.ground-school-question-option span {
    line-height: 1.45;
}

.ground-school-question-option small,
.ground-school-review-option small {
    color: currentColor;
    font-size: 0.72rem;
    font-weight: 750;
    white-space: nowrap;
}

.ground-school-question-option.is-correct,
.ground-school-review-option.is-correct {
    border-color: color-mix(in srgb, var(--correct) 70%, var(--border));
    background: color-mix(in srgb, var(--correct) 11%, var(--card));
    color: var(--correct);
}

.ground-school-question-option.is-wrong,
.ground-school-review-option.is-wrong {
    border-color: color-mix(in srgb, var(--wrong) 70%, var(--border));
    background: color-mix(in srgb, var(--wrong) 10%, var(--card));
    color: var(--wrong);
}

.ground-school-question-option.is-correct span,
.ground-school-question-option.is-wrong span,
.ground-school-review-option.is-correct span,
.ground-school-review-option.is-wrong span {
    color: var(--text);
}

.ground-school-feedback {
    margin-top: 16px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: color-mix(in srgb, var(--control) 78%, var(--card));
}

.ground-school-feedback p {
    margin: 5px 0 0;
    color: color-mix(in srgb, var(--text) 72%, var(--bg));
    line-height: 1.5;
}

.ground-school-feedback.is-correct {
    border-color: color-mix(in srgb, var(--correct) 55%, var(--border));
}

.ground-school-feedback.is-wrong {
    border-color: color-mix(in srgb, var(--wrong) 55%, var(--border));
}

.ground-school-feedback.is-correct > strong {
    color: var(--correct);
}

.ground-school-feedback.is-wrong > strong {
    color: var(--wrong);
}

.ground-school-quiz-validation {
    margin: 12px 0 0;
    color: var(--wrong);
    font-weight: 700;
}

.ground-school-result-card {
    display: flex;
    align-items: baseline;
    gap: 13px;
    margin-top: 18px;
    padding: 13px 15px;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: transparent;
}

.ground-school-result-card strong {
    color: var(--text);
    font-size: 2rem;
    line-height: 1;
}

.ground-school-result-card span {
    color: color-mix(in srgb, var(--text) 68%, var(--bg));
    font-size: 0.9rem;
}

.ground-school-result-card.is-passed {
    border-color: color-mix(in srgb, var(--correct) 60%, var(--border));
}

.ground-school-result-card.is-not-passed {
    border-color: color-mix(in srgb, var(--wrong) 50%, var(--border));
}

.ground-school-completion-stack {
    display: grid;
    gap: 0;
    margin-top: 18px;
    border-top: 1px solid var(--border);
}

.ground-school-certificate-panel,
.ground-school-next-subject-panel {
    display: grid;
    gap: 10px;
    padding: 16px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.ground-school-certificate-heading {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.ground-school-certificate-heading h3,
.ground-school-next-subject-panel h3 {
    margin: 3px 0 0;
    color: var(--text);
    font-size: 1.04rem;
}

.ground-school-certificate-heading p,
.ground-school-next-subject-panel p {
    margin: 5px 0 0;
    color: color-mix(in srgb, var(--text) 70%, var(--bg));
    font-size: 0.9rem;
    line-height: 1.45;
}

.ground-school-certificate-icon {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    place-items: center;
    border-radius: 50%;
    background: color-mix(in srgb, var(--correct) 24%, var(--card));
    color: var(--correct);
}

.ground-school-certificate-icon svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.ground-school-certificate-status {
    min-height: 1.2em;
    color: color-mix(in srgb, var(--correct) 72%, var(--text));
    font-size: 0.78rem;
    font-weight: 700;
}

.ground-school-certificate-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ground-school-certificate-actions button {
    flex: 0 1 auto;
    min-height: 38px;
    padding: 8px 13px;
    border-radius: 9px;
    box-shadow: none;
    font-size: 0.88rem;
}

.ground-school-next-subject-panel {
    border-top: 1px solid var(--border);
}

.ground-school-next-subject-panel > .ground-school-primary-button {
    width: max-content;
    min-height: 38px;
    padding: 8px 13px;
    border-radius: 9px;
    box-shadow: none;
    font-size: 0.88rem;
}

.ground-school-review-list {
    display: grid;
    gap: 16px;
    margin-top: 22px;
}

.ground-school-review-question {
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--card) 88%, var(--bg));
}

.ground-school-review-question h3 {
    margin-bottom: 14px;
    font-size: 1.05rem;
}

.ground-school-review-options {
    display: grid;
    gap: 8px;
}

.ground-school-review-option {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: color-mix(in srgb, var(--text) 84%, var(--bg));
}

.ground-school-review-marker {
    display: inline-grid;
    width: 24px;
    height: 24px;
    place-items: center;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-size: 0.72rem;
    font-weight: 800;
}

.ground-school-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 980px) {
    .ground-school-subject-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .ground-school-screen {
        padding: 16px 12px 50px;
    }

    .ground-school-modal-backdrop {
        padding: 10px;
    }

    .ground-school-quiz-modal {
        width: 100%;
        max-height: calc(100vh - 20px);
        max-height: calc(100dvh - 20px);
        padding: 14px;
        border-radius: 16px;
    }

    .ground-school-hero,
    .ground-school-detail-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .ground-school-enrolment-placeholder {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 16px;
    }

    .ground-school-enrolment-action {
        justify-items: stretch;
        text-align: left;
    }

    .ground-school-enrolment-action small {
        text-align: left;
    }

    .ground-school-hero {
        padding: 16px 18px;
    }

    .ground-school-module-summary {
        align-items: flex-start;
    }

    .ground-school-module-summary > .ground-school-status {
        align-self: flex-start;
    }

    .ground-school-hero-main {
        align-items: stretch;
        flex-direction: column;
    }

    .ground-school-hero-actions {
        align-items: flex-start;
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .ground-school-course-navigation {
        justify-content: flex-start;
    }

    .ground-school-course-tabs {
        width: 100%;
        justify-content: flex-start;
    }

    .ground-school-subject-grid,
    .ground-school-assessment-grid,
    .ground-school-module-steps {
        grid-template-columns: 1fr;
    }

    .ground-school-builder-controls,
    .ground-school-builder-grid {
        grid-template-columns: 1fr;
    }

    .ground-school-builder-wide {
        grid-column: auto;
    }

    .ground-school-builder-heading,
    .ground-school-builder-module-heading {
        flex-direction: column;
    }

    .ground-school-module-summary {
        align-items: flex-start;
    }
}

/* Ground-school quiz controls follow the flatter Practice control language.
   Keep the action row in normal flow so feedback cannot sit behind it while
   the question card is scrolled. */
.ground-school-quiz-actions {
    position: static;
    align-items: center;
    margin-top: 16px;
    padding: 12px 0 0;
    background: transparent;
    box-shadow: none;
}

.ground-school-quiz-actions > button {
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 8px;
    box-shadow: none;
    font-weight: 750;
}

.ground-school-quiz-actions > button:hover,
.ground-school-quiz-actions > button:focus-visible {
    box-shadow: none;
    transform: none;
}

/* Keep Ground School aligned with the app-wide light/dark switch. Most of the
   screen already uses the shared theme tokens; these overrides cover the few
   deliberately dark media and modal surfaces. */
body.light .ground-school-builder-video-preview video,
body.light .ground-school-video-item video,
body.light .ground-school-video-placeholder video {
    background: #dbe4ee;
}

body.light .ground-school-modal-backdrop {
    background: rgba(15, 23, 42, 0.38);
}

body.light .ground-school-quiz-modal {
    box-shadow: 0 18px 60px rgba(15, 23, 42, 0.2);
}

body.light .ground-school-enrolment-placeholder,
body.light .ground-school-hero,
body.light .ground-school-library-card,
body.light .ground-school-detail,
body.light .ground-school-assessment-card {
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

body.light .ground-school-enrolment-placeholder {
    border-color: #cfe2f5;
    background: linear-gradient(135deg, #f5faff, #ffffff 72%);
}

body.light .ground-school-enrolment-action {
    border-color: #c7ddf2;
    background: #ffffff;
}

@media (max-width: 720px) {
    .ground-school-enrolment-backdrop {
        padding: 8px;
    }

    .ground-school-enrolment-modal {
        max-height: calc(100vh - 16px);
        border-radius: 16px;
    }

    .ground-school-enrolment-modal-header,
    .ground-school-enrolment-form {
        padding-right: 16px;
        padding-left: 16px;
    }

    .ground-school-enrolment-steps {
        padding-right: 16px;
        padding-left: 16px;
        gap: 11px;
        font-size: 0.68rem;
    }

    .ground-school-form-grid,
    .ground-school-upload-grid {
        grid-template-columns: 1fr;
    }

    .ground-school-enrolment-complete {
        margin-right: 16px;
        margin-left: 16px;
    }

    .ground-school-enrolment-locked {
        margin-right: 16px;
        margin-left: 16px;
    }

    .ground-school-locked-profile-fields {
        grid-template-columns: 1fr;
    }

    .ground-school-enrolment-modal-actions {
        justify-content: stretch;
    }

    .ground-school-enrolment-modal-actions button {
        flex: 1 1 0;
    }
}